A 15-year prospective epidemiological account of acute traumatic injuries during official professional soccer league matches in Japan.

Background: Few prospective epidemiological studies on soccer match injuries have collected continuous data using subjects from the same group.

Purpose: To investigate long-term injury-induced changes during official matches in the professional Japanese soccer league.

Study Design: Descriptive epidemiological study.

Incidence of injury among adolescent soccer players: a comparative study of artificial and natural grass turfs.

Objective: To investigate the incidence of acute injuries and soccer-related chronic pain from long-term training and during matches in adolescent players using natural grass turfs (NT) and artificial turfs (AT).

Design: Case-controlled prospective study.

Setting: Institutional-level Fédération Internationale de Football Association Medical Centre of Excellence.